Decorating and Design - Unusual size light switch plate

I am trying to find a new light switch plate for my bathroom, but haven't had any luck because of its unusual size. It is a 3 switch plate, but the switches are shorter and wider than a normal light switch. One of the switches is for the light, one is for a fan and one is for a heater. The switches light up at night, so they are made of some type of glow in the dark material. The manufacturers name on the existing switch plate is Thomas. Our house was built in the 60's and I am sure it is the original switch plate. The plates are in good condition, but an ugly silver, and I want something different since I am redoing my bathroom. So can anyone help me find someone who makes this type of switch plate? Or does anyone have any ideas of how I could change the look of the existing silver colored metal plate? Thanks.

If the switches are over each other, you have a despard type wall switch. Rather than replace all 3 switches in a new 2 gang box, which includes cutting the wall, why not paint or wallpaper the switchplate. Sand it down with emery, and spray it a solid color.